Re: [Patch, Fortran] PR 40881: warn for obsolescent features

[Robert Dewar <dewar at adacore dot com>]

Janus Weil wrote:
> Hi all,
>
> the Fortran 90 standard lists nine "obsolescent" f77 features, which
> continue to be supported in f90, but may be deleted in the future.
> Therefore their usage is discouraged by the standard. Currently, we
> only warn about two of them (arithmetic if and assumed length
> character functions). This patch adds warnings for four more:

I assume that these warnings can be controlled as a group? It is
not clear you want to warn unconditionally for such usage. And if
anyone thinks these features might actually be removed, they are
deluding themselves. Think back to the attempt to remove the ALTER
verb in COBOL-90. A major company threatened to sue the members of
the standards committee individually, and they backed down :-)